Ionic 1.2.1 Slides bullets hidden

Hi,

Yesterday I installed the new version of Ionic (1.2.1-nightly-1867 using bower). Every thing seems to work fine except the bullets for the new ion-slides directive.

When the DOM is created I can see a ng-hide class which is added to the bullets div, and so the bullets are hidden. If I remove this class, I can see the bullets, click on it and everything is fine.

Here is the code I can observe using developer tools :

<div ng-hide="!showPager" class="swiper-pagination swiper-pagination-clickable ng-hide">...</div>

Did anyone also encounter this problem ?
I can't find where this ng-hide="!showPager" comes from...

Thanks by advance,
Rémi